DRDB · Roman DBDR Acquisition Corp. II

$10.65 At close · Sep 1

Market Cap

$326.91M

30.67M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Quarter:

Holders: 63

Total Value: $243,925,558

Total Shares: 33,896,961

Institutional Ownership Trend

7 quarters

Holder Concentration

Across 63 13F filers · Δ vs Mar 31, 2026

Top Holder

9.8%

+2.0 pts

Top 5

36.2%

+4.0 pts

Top 10

59.6%

+4.8 pts

HHI

476

Broadly held+55

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: 0

Institutional value: +1.0%

Shares held: +0.4%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mid MIZUHO SECURITIES USA LLC	+571,027	1,571,027
Mid WOLVERINE ASSET MANAGEMENT LLC	+537,605	789,500
Mid BERKLEY W R CORP	+475,757	2,276,587
Mid HIGHBRIDGE CAPITAL MANAGEMENT LLC	+453,163	2,297,271
Mid Westchester Capital Management, LLC	+252,847	588,089

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Mid Fort Baker Capital Management LP	−1,523,746	402,823
Small METEORA CAPITAL, LLC	−953,155	333,449
Mega TWO SIGMA INVESTMENTS, LP	−667,142	57,858
Large TORONTO DOMINION BANK	−326,400	644,754
Mid ARISTEIA CAPITAL, L.L.C.	−200,000	1,651,034

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mid Virtu Financial LLC	25,209	$265,576
Small Logan Stone Capital, LLC	19,326	$203,599
Mega CITADEL ADVISORS LLC	11,719	$123,459

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Mid LANDSCAPE CAPITAL MANAGEMENT, L.L.C.	12,468	$130,538
Small FNY Investment Advisers, LLC	100	$1,047
Small HEIGHTS CAPITAL MANAGEMENT, INC	37,500	$0

Filter: New 3 Increased 23 Reduced 12 Sold out 3 Unchanged 25

Showing 89 of 89

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

BERKLEY W R CORP

$23,983,844

9.83%

2,276,587

HIGHBRIDGE CAPITAL MANAGEMENT LLC

$22,649,196

9.29%

2,149,900

MIZUHO SECURITIES USA LLC

$16,550,769

6.79%

1,571,027

GLAZER CAPITAL, LLC

$12,641,241

5.18%

1,199,928

AQR Arbitrage LLC

$12,421,175

5.09%

1,179,039

Crossingbridge Advisors, LLC

$12,036,237

4.93%

1,142,500

D. E. Shaw & Co., Inc.

$11,986,596

4.91%

1,137,788

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
D. E. SHAW & CO, L.P.	1,137,788	$11,986,596	100.0%	Defined

TENOR CAPITAL MANAGEMENT Co., L.P.

$11,693,850

4.79%

1,110,000

ARISTEIA CAPITAL, L.L.C.

$10,893,432

4.47%

1,034,023

LMR Partners LLP

$10,642,183

4.36%

1,010,174

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
LMR PARTNERS (DIFC) Ltd	1,010,174	$10,642,183	100.0%	Sole

Magnetar Financial LLC

$10,535,000

4.32%

1,000,000

WOLVERINE ASSET MANAGEMENT LLC

$8,317,382

3.41%

789,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	789,500	$8,317,382	100.0%	Defined

Linden Advisors LP

$7,901,250

3.24%

750,000

BRC Group Holdings, Inc.

$6,383,293

2.62%

605,913

Radcliffe Capital Management, L.P.

$5,533,677

2.27%

525,266

Verition Fund Management LLC

$5,059,465

2.07%

480,253

First Trust Capital Management L.P.

$4,775,083

1.96%

453,259

Westchester Capital Management, LLC

$4,615,286

1.89%

438,091

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WESTCHESTER CAPITAL PARTNERS, LLC	585	$6,162	0.1%	Sole
Virtus Investment Advisers, LLC	408,308	$4,301,524	93.2%	Other
Held directly	29,198	$307,600	6.7%	Sole

WHITEBOX ADVISORS LLC

$4,214,000

1.73%

400,000

GOLDMAN SACHS GROUP INC

$4,207,889

1.73%

399,420

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	399,420	$4,207,889	100.0%	Defined

RLH Capital LLC

$3,687,513

1.51%

350,025

RiverPark Advisors, LLC

$2,976,137

1.22%

282,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Crossingbridge Advisors, LLC	282,500	$2,976,137	100.0%	Other

Schonfeld Strategic Advisors LLC

$2,898,800

1.19%

275,159

Shaolin Capital Management LLC

$2,816,985

1.15%

267,393

CSS LLC/IL

$2,421,511

0.99%

229,854

Periscope Capital Inc.

$2,370,375

0.97%

225,000

SONA ASSET MANAGEMENT (US) LLC

$2,107,000

0.86%

200,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SONA ASSET MANAGEMENT (UK) LLP	200,000	$2,107,000	100.0%	Other

MOORE CAPITAL MANAGEMENT, LP

$2,107,000

0.86%

200,000

Quarry LP

$1,843,772

0.76%

175,014

PICTON MAHONEY ASSET MANAGEMENT

$1,843,625

0.76%

175,000

BNP PARIBAS ARBITRAGE, SA

$1,516,903

0.62%

143,987

Nokomis Capital, L.L.C.

$1,369,823

0.56%

130,026

TORONTO DOMINION BANK

$1,053,500

0.43%

100,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TD SECURITIES (USA) LLC	100,000	$1,053,500	100.0%	Defined

Hudson Bay Capital Management LP

$1,053,500

0.43%

100,000

O'Connor Alternative Investments LLC

$1,053,500

0.43%

100,000

TrueMark Investments, LLC

$1,001,878

0.41%

95,100

Karpus Management, Inc.

$814,092

0.33%

77,275

Clear Street Group Inc.

$790,125

0.32%

75,000

Rangeley Capital, LLC

$632,100

0.26%

60,000

TWO SIGMA INVESTMENTS, LP

$609,534

0.25%

57,858

GEODE CAPITAL MANAGEMENT, LLC

$416,395

0.17%

39,525

Lineage Point Capital LP

$416,132

0.17%

39,500

READYSTATE ASSET MANAGEMENT LP

$271,170

0.11%

25,740

Virtu Financial LLC

$265,576

0.11%

25,209

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	25,209	$265,576	100.0%	Defined

Warberg Asset Management LLC

$212,870

0.09%

20,206

Logan Stone Capital, LLC

$203,599

0.08%

19,326

CITADEL ADVISORS LLC

$123,459

0.05%

11,719

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	11,719	$123,459	100.0%	Defined

LONGFELLOW INVESTMENT MANAGEMENT CO LLC

$4,782

0.00%

454

UBS Group AG

$2,528

0.00%

240

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	240	$2,528	100.0%	Defined

MORGAN STANLEY

$526

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY CAPITAL SERVICES, LLC	50	$526	100.0%	Defined

TORONTO DOMINION BANK DRDBW

—

544,754

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TD SECURITIES (USA) LLC	544,754	$0	—	Defined

Lineage Point Capital LP DRDBW

—

35,454

WHITEBOX ADVISORS LLC DRDBW

—

200,000

Hudson Bay Capital Management LP DRDBW

—

156,939

Magnetar Financial LLC DRDBW

—

500,000

LONGFELLOW INVESTMENT MANAGEMENT CO LLC DRDBW

—

227

HIGHBRIDGE CAPITAL MANAGEMENT LLC DRDBW

—

147,371

Harraden Circle Investments, LLC DRDBW

—

1,835,778

Kepos Capital LP DRDBW

—

795,550

D. E. Shaw & Co., Inc. DRDBW

—

150,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
D. E. SHAW & CO, L.P.	150,000	$0	—	Defined

MOORE CAPITAL MANAGEMENT, LP DRDBW

—

100,000

Schonfeld Strategic Advisors LLC DRDBW

—

30,000

ARISTEIA CAPITAL, L.L.C. DRDBW

—

617,011

METEORA CAPITAL, LLC DRDBW

—

333,449

Rangeley Capital, LLC DRDBW

—

1,083

RIVERNORTH CAPITAL MANAGEMENT, LLC DRDBW

—

200,000

AQR Arbitrage LLC DRDBW

—

567,396

StoneX Group Inc. DRDBW

—

118,894

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STONEX FINANCIAL INC.	118,894	$0	—	Defined

Fort Baker Capital Management LP DRDBW

—

402,823

BNP PARIBAS ARBITRAGE, SA DRDBW

—

199,710

Westchester Capital Management, LLC DRDBW

—

149,998

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WESTCHESTER CAPITAL PARTNERS, LLC	473	$0	—	Sole
Virtus Investment Advisers, LLC	137,216	$0	—	Other
Held directly	12,309	$0	—	Sole

DLD Asset Management, LP DRDBW

—

99,499

K2 PRINCIPAL FUND, L.P. DRDBW

—

103,595

Walleye Capital LLC DRDBW

—

363,771

CSS LLC/IL DRDBW

—

140,625

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND DRDBW

—

375,000

UBS Group AG DRDBU

—

26,829

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	26,829	$0	—	Defined

Linden Advisors LP DRDBW

—

150,000

FLOW TRADERS U.S. LLC DRDBU

—

10,080

Bulldog Investors, LLP DRDBW

—

337,810

Periscope Capital Inc. DRDBW

—

190,000

GLAZER CAPITAL, LLC DRDBW

—

100,000

Nokomis Capital, L.L.C. DRDBW

—

78,473

TENOR CAPITAL MANAGEMENT Co., L.P. DRDBW

—

505,000

Saba Capital Management, L.P. DRDBW

—

174,262

Clear Street Group Inc. DRDBW

—

25,703

Shaolin Capital Management LLC DRDBW

—

406,155

Clear Street Group Inc. DRDBU

—

64,807

LMR Partners LLP DRDBW

—

505,087

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
LMR PARTNERS (DIFC) Ltd	505,087	$0	—	Sole

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Landscape High Leverage Fund, LP	2,373	$24,845	19.0%	Defined
LANDSCAPE OFFSHORE HL FUND LTD.	6,527	$68,337	52.4%	Defined
Held directly	3,568	$37,356	28.6%	Sole

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
CVI Investments, Inc.	37,500	$0	—	Other

Key facts CIK 2032528 CUSIP G7633M104 13F (30d) 68 filings 63 filers Visit website Investor relations